@article{1256054462, author = {Patterson, Richard R.}, title = {The Wang sequence for half-exact functors}, journal = {Illinois J. Math.}, volume = {11}, number = {4}, year = {1967}, pages = { 683-689}, language = {en}, url = {http://dml.mathdoc.fr/item/1256054462} }
Patterson, Richard R. The Wang sequence for half-exact functors. Illinois J. Math., Tome 11 (1967) no. 4, pp. 683-689. http://gdmltest.u-ga.fr/item/1256054462/